php网络编程swoole tcp

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服务端：

<?php
$server = new Swoole\Server('127.0.0.1', 9501);

$server->set([
    'worker_num' => 8, // worker进程数 cpu1-4倍
    'max_request' => 10000, // 根据内存定义 https://wiki.swoole.com/#/server/setting
    // 'open_eof_check' => true,
    // 'package_eof' => "\r\n",
    
    'open_length_check' => true,
    'package_max_length' => 81920,
    'package_length_type' => 'S', //see php pack()
    'package_length_offset' => 0,
    'package_body_offset' => 4,
]);


$server->on('start', function ($server) {
    echo "TCP Server is started at tcp://127.0.0.1:9501\n";
});
    
$server->on('connect', function ($server, $fd){
    echo "connection open: {$fd}\n";
});
    
$server->on('receive', function ($server, $fd, $reactor_id, $data) {
    echo "reactor_id：{$reactor_id}\n";
    echo "接收到客户端数据：{$data}\n";
    
    $message = '我收到你的消息了1';
    $sendMessage = pack("I", strlen($message)) . $message;
    $server->send($fd, $sendMessage);
    
    $message = '我收到你的消息了2';
    $sendMessage = pack("I", strlen($message)) . $message;
    $server->send($fd, $sendMessage);
});

$server->on('close', function ($server, $fd) {
    echo "connection close: {$fd}\n";
});

$server->start();

/*
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PHP高级技术手写swoole分布式框架（二）:av78632435
PHP高级技术手写swoole分布式框架（三）:av78748923
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用swoole实现消息推送:av79874641
swoole+docker+redis主从复制及读写分离av78781841
*/

客户端：

<?php
$client = new Swoole\Client(SWOOLE_SOCK_TCP);
if (!$client->connect('127.0.0.1', 9501, -1)) {
    exit("connect failed. Error: {$client->errCode}\n");
}
 
$message = '测试一下，php客户端';
$length = pack("I", strlen($message));
$client->send($length.$message);
 
$length = $client->recv(4);
$length = unpack("I", $length)[1];
echo "收到服务端回复：".$client->recv($length)."\n";
 
$length = $client->recv(4);
$length = unpack("I", $length)[1];
echo "收到服务端回复：".$client->recv($length)."\n";
 
$client->close();
 
//https://www.runoob.com/php/func-misc-pack.html

客户端python：

import socket
import struct
 
sk = socket.socket()
 
# 必须和server端的一致
sk.connect(('127.0.0.1', 9501))
 
# 客户端 发送 消息给服务端
msg1 = '测试一下，python客户端'
blen = struct.pack('I', len(msg1.encode()))
sk.send(blen)
sk.send(msg1.encode('utf-8'))
 
length = sk.recv(4)
length = struct.unpack('I', length)[0]
msg = sk.recv(length)
print(f"收到服务端回复：{msg.decode('utf-8')}")
 
length = sk.recv(4)
length = struct.unpack('I', length)[0]
msg = sk.recv(length)
print(f"收到服务端回复：{msg.decode('utf-8')}")
 
sk.close()